Daniel Tubbenhauer's What is…quantum topology? Part 21

Sounds like you could explain Bubble sort with this! See also An elementary treatise on determinants : with their application to simultaneous linear equations and algebraical geometry by Lewis Carroll. You're supposed to be reading Daniel's book Quantum Topology Without Topology to follow this series.

Here's the introduction. He says a better name for it would be Low Dimensional Category Theory.

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